package com.itheima.reggie.common;


import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;

import java.sql.SQLIntegrityConstraintViolationException;

@ControllerAdvice(annotations = {RestController.class, Controller.class})
@ResponseBody
@Slf4j
public class GlobalExceptionHandler {

    @ExceptionHandler(SQLIntegrityConstraintViolationException.class)
    public R<String>  exceptionHandler(SQLIntegrityConstraintViolationException ex){
       /*异常信息 :Duplicate entry 'zsa' for key 'employee.idx_username'  zsa为唯一约束 Duplicate 重复了 */
       log.info(ex.getMessage());

       if(ex.getMessage().contains("Duplicate entry")){
           String [] split=ex.getMessage().split(" ");
           String msg=split[2]+"已存在";
           return R.error(msg);
       }
       return R.error("未知错误");
    }

    @ExceptionHandler(CustomException.class)
    public R<String>  exceptionHandler(CustomException ex){
        /*自定义业务异常CustomException*/
        log.info(ex.getMessage());
        return R.error(ex.getMessage());
    }
}
